first

The fielding position of the player on a baseball team who is stationed at first of the bases in the infield (counting counterclockwise from home plate).

The first or highest in an ordering or series.

“He wanted to be the first”

An honours degree of the highest class.

The time at which something is supposed to begin.

The lowest forward gear ratio in the gear box of a motor vehicle; used to start a car moving.

The first element in a countable series.

“the first of the month”

Before anything else.

“first we must consider the garter snake”

Prominently forward.

Highest in pitch or chief among parts or voices or instruments or orchestra sections.

“first soprano”

“the first violin section”

Preceding all others in time or space or degree.

“the first house on the right”

“the first day of spring”

Indicating the beginning unit in a series.

Serving to set in motion.

“his first (or maiden) speech in Congress”

Serving to begin.

“the first verse”

Ranking above all others.

“was first in her class”